While playing on Pokemon Lab I used the move Brave Bird with my Skarmory on my opponent's Machamp. Machamp lost 2% HP, yet the recoil of Brave Bird was 23%! Here is the log for that turn. Neither Machamp nor Skarm had any status affliction. My Defence stat, however, was at -1. Skarmory used Brave Bird! It's super effective! Machamp lost 1/48 (2%) of its health! Machamp fainted! Skarmory was hit by recoil! Skarmory lost 80/334 (23%) of its health!